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nif:beginIndex
  • 0 (xsd:integer)
nif:broaderContext
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  • 244 (xsd:integer)
nif:isString
  • In univariate analysis, the comparison between current smokers and never smokers with respect to socio-demographic and clinical characteristics was performed by independent sample t-test, Mann-Whitney U test, and chi-square test as appropriate.
rdf:type